Precision Feeding & Compounding Systems
Orbetron screw feeders provide accurate, reliable feeding of powders, pellets, and fibers. With single-screw, twin-screw, and full compounding systems, CMT and Orbetron deliver U.S.-made solutions backed by local support.
Overview
From laboratory feeders to large-scale compounding systems, Orbetron delivers U.S.-made, performance-driven feeding solutions. Partner with CMT for local service, application engineering, and turnkey integration.
Single Screw Feeders
Accurate feeding for free-flowing materials
Ideal for powders, pellets, and granules. Models range from micro-dosing to high-capacity designs, with easy cleanability and modular construction.
- OSS Micro, AS25, AS60, NS70, AS130
- Tool-less disassembly for quick cleaning
- Loss-in-weight or volumetric operation
Twin Screw Feeders
For difficult, sticky, or cohesive powders
Twin-screw designs provide consistent feeding where single screws may bridge or rat-hole. Great for high-value ingredients requiring precision.
- OTS Micro, AT16, AT20, AT35, AT70
- Self-wiping twin screws prevent build-up
- Loss-in-weight or volumetric operation
Compounding & Feeding Systems
Turnkey systems for extrusion, compounding, and blending
Orbetron specializes in engineered compounding systems integrating multiple loss-in-weight feeders, controls, and materials handling equipment. Systems are tailored to extrusion, compounding, and batching operations with unmatched flexibility.
- Integrated controls with recipe management
- 49 feeder installation in a composite decking plant → 14 extrusion lines, best product quality ever (see case history)
- OSB and Flex-Feeder systems available
Typical Orbetron OSB Feeding System
Advanced Controls for Precision Feeding
Orbetron’s S2 Gravimetric Controller provides user-friendly recipe management, real-time monitoring, and high-resolution control of feeders in compounding systems.
- Touchscreen interface with intuitive menus
- Accurate loss-in-weight control algorithms
- Integrates seamlessly with extrusion and batching systems
Compare Screw Feeding Technologies
Use this guide to match feeder technology to your material and process goals. Notes reflect common best practices for powders and pellets.
| Feeder Type | Materials & Flowability | Flow Aids / Hopper Options | Typical Rate Range | Accuracy Mode | Advantages | Considerations |
|---|---|---|---|---|---|---|
| Single Screw Feeders (OSS Micro, AS25/60, NS70, AS130) |
Free-flowing powders, pellets, granules; can handle some difficult-to-flow powders when properly agitated. | Agitated hoppers available (vertical/horizontal or multi-wing). Agitation prevents bridging and keeps screw filled for linear mass flow. | Micro-dosing from ~5 g/hr and up (model-dependent); scalable to higher rates with larger screws. | Volumetric or Gravimetric LIW (best precision with LIW). | Simple, economical, fast changeovers; tool-less screw/hopper swaps; compact footprints. | Not ideal for very sticky or highly cohesive powders without agitation; screw wear with abrasives. |
| Twin Screw Feeders (OTS Micro, AT16/20/35/70) |
Poor-flowing, cohesive, or sticky powders; flakes, regrind, fibers; also free-flowing products. | Integrated horizontal/multi-wing agitators keep the ingredient compartment fully active; self-wiping twin screws resist build-up. | Micro-dosing from ~5 g/hr (micro models) to high rates on larger AT-series. | Volumetric or Gravimetric LIW (preferred for consistency and tracking). | Stable feed of difficult materials; reduced rat-holing/bridging; broad application window. | More components than single-screw; slightly higher cost/maintenance; proper screw selection important. |
| Compounding & Feeding Systems (OSB platforms, Flex Feeders + S2 Controls) |
Multi-ingredient extrusion/compounding, batching, masterbatch, additives, fillers. | Multiple LIW feeders with coordinated refills; centralized recipes; optional vacuum/pneumatic transfer and dust control. | From micro-additives (grams/hr) to major ingredients (1000+ lb/hr) across parallel lines. | All feeders gravimetric LIW with integrated controls (recipe/alarms/trending). | Turnkey integration; best blend accuracy; rapid changeovers; proven large installs (e.g., multi-line decking systems). | Engineered-to-order; requires upfront application engineering and commissioning. |
Tip: If your powder tends to bridge or de-aerate, start with a twin-screw or a single-screw with a properly sized agitator and consistent refill strategy.
Let’s Specify Your Screw Feeding Solution
Tell us your material, feed rate, and accuracy needs—we’ll design a single-screw, twin-screw, or full compounding system that’s guaranteed to perform.
Request a Quote Call 704-704-6151Why Orbetron + CMT?
Orbetron and CMT provide the personal support and responsiveness missing from larger competitors.
- Faster response times and local support compared to larger competitors
- Manufactured in the U.S.—not subject to tariffs or overseas delays
- Flexible designs, competitive pricing, and custom engineering
- Give Orbetron a chance for your next feeding project—you won’t be disappointed